Two scales are used, one for twin aisle and another for single aisle aircraft. The diagrams are optimised on the AeroLOPA site for mobile and desktop viewing where they natively display in portrait format. The samples I posted up thread were rotated 90 deg to display better on FT without consuming oodles of real estate. However on FT, the images are stretched to fill the full width of the post which has altered the fuselage widths